Machine for molding concrete walls and the like.



A. J. STOESER. MACHINE FOR MOLDING CONCRETE WALLS AND THE LIKE. APPLICATION FILED DEG.12, 1907.

4 SHEETSSHBET 1.

Patented Apr. 5 i910.

A. J. S'IOESER.

MACHINE FOB. MOLDING-CONCRETE WALLS AND THE LIKE. APPLIOATIOE FILED DEO.12, 1907.

Patented Apr. 5, 1910.

' 4 SHEETS-SHEET 2.

A. J. STOESER. DING CONCRETE WALLS AND THE LIKE.

MACHINE FOR MOL APPLICATION FILED D2012, 1907.

Patented Apr.5, 191.0.

, 4 SHEETS-SHEET s A. J STOESER. mam FOE HOLDING CONCRETE WALLS AND THE LIKE. APPLIC ATIOH FILED DEC 12, 19

Patented Apr. 5, 1910.

4 SHEBTS-SHEET 4 UNITED STATES PATENT @Fltltitit fso arranged as to provide separate mold cavities for respectively formin outer faces of a hollow wall? for bli

Chicago, in the county of Cook and State of ful Improvements in Machines for Molding "Concrete Walls This invention relates to improvements A itirther object is to provide an improved machine of this'character in which 2t sup-1 .directl .upon the wall'to form aeontinuand c ective andefiicient in operation.

sistls in the features of novelty in the construction, combinat on and arrangement of the" several parts hereinafter more fully deimproved" machine of: this character too orm the, air space.

ALEXANDEBJ'. STOESER, OF CHICAGO, ILLI'NQIS.

MACHINE on MOLDING cone Application filed December 1 To all whom it may concern: .Be it known that L'ALEXANDER J. S'roEsnn, a citizen of the United States, residing at Illinois, have inventedcertain new and uses and the Like, of which the following is a specification.

in machines for molding walls of plastic material, commonly known as concrete, and

invention is to pro- A further object is toprovide an. improved machine of this chara'cter'in' which a plurality of mold me hers are employed and the inner and and improved locking the mold members in position.

porting 'frame is employed for the mold members, and improved means whereby the mold members may beadjusted with rela' tion to thefranie and the frame adjusted with respect to the wall to mold the sections.

one ho low wall. 1 I

I A fu'rtherobject is to provide an improved matrix for molding the rough faces of the sections.

A further object 'is to provide an imroved machine of this character which will aim le, durable and cheap in construction To the attainnient of these ends and the accomplishment of other new and useful ob ects, asl'will appeal, the invent on conscribed and claimed and shown in the accompanyin ,drawinlgs, illustrating .an embodi ment 0 the-gln 'entloinxnnd in which-- Figure 1 is a-dctz ilperspective view of an ir ding the corner of a wall, and constr. .t-

Specification of Letters Patent.

RETE WALLS AND FREE LIKE.

Patented Apr. 5, 1910.. 2.1907. serial No. scenic;

view, partly in'section, of Fig. 1. Fig. i is a detail sectional View on line P4: of Fig. 3. Fig. 5 is a detail perspe live view of one of the keys for locking the inner-mold sections against displacement. Fig. 6 is a detail perspective view of the mold sections showing a modified form of clamp. Fig. is an elevation showing the face of the Ditttrix for forming the rough face of the sec tions. Fig. .8 is a detail perspective view oi: one of the clamping members. Fig. 9 a detaiLpersp-ective View of the inner mold sections and one of the tie rods.

Referring more particularly to the drawings and in the present exemplification oi the invention,-the numerals 15, 16, designate the ou'tsidemold members, and 17, 18 the inside niold'n'iembers, which letter are adapted to cooperate with the outside mold members to form separate mold cavities into which the plastic material is placed to form the all section, the inside rn'oldmembers 17, 18,

servinglto form the air space in wall,

One of the outside mold members, preferably the member id, is provided with a into one of the mold cavities, and this matrix is shaped to form a plurality of sections in the form of blocks which are :irranged to break jointwith each other, as shown more clearly in Fig. 7, so thiit when the mold sections are detached ai er forming a sec tion or" Wall, the mate be adjusted vertically to form the 'ecticn, so the blocks formed tl y Will creel; joint with the upper row of block sections formed in the lower section of the wall, wi hout the necessity of longitudinally adjusting the mold sect-ion 15.

(l ie of the inner inoldscctions, preferably the sectionltl, is provided'u'ith a Literally projecting rib 20, which'is adapted to rest tremity of the sectionlS is adapted to pro ject beyond the lateral extension 20 so as to spacethe corresponding member of another mold section from its cooperating member,

when the molds are assembled to form; a

corner, as shown in Fig. 1. In this QXQYDPllfication of the invention, one extremity of one oi the outer mold sections 15 is adopted to resta-gainst the face of another one 056 'zzpuce between the inner mold sections w the-sections is and are secured to ether by Fig. .3 is a. top y'lan i -g eparable members Yihieh are rest upon the upper edge provided with registering eyes into which a suitable fastening pin or key is adapted to be inserted.

A suitable frame Work comprising spaced uprights or standards 24, 25, are provided for holding the mold sections in position. These uprights may be of any desired or suitable height and are connected together by means of tie rods 26, 27, one of which passes through the lower extremity of the uprights and is adapted to rest upon the supporting surface when the first section of the wall is to be formed, and the other tie rod is adapted to connect the free extremities of the uprights. Suitable brace rods 28 may be provided for holding the uprights against displacement and connecting members: 29 may be provided for holding the uprights against pivotal movement.

The uprights 24, 25, are connected by the tie rods 26, 27, and placed in proper position upon the supporting surface and are secured against displacement by means of the braces 28, one extremity of which engages oneot the uprights and the free extremity thereof may be secured to any suitable support, preferably the floor timbers of the building. The sections or members 15, 16, of the mold are then placed in position within the frame work so that the lower edges thereof will rest upon the tie rods 26, and when the outer sections 15 are secured together by the fastening pins 23, if the mold is arranged to form a corner, the inner mold sections 17 and 18 are then placed in position. Suitable spacing members 30, which are preferably of a height equal to the height of the outer mold section, may be placed between the uprights or standards and the outer face of the respective mold sections 15, 16.

Suitable clamps may be provided for bolding the mold sections against displacement. A suitable and efficient form of clamp comprises a bar or rod 31 which is adapted to of the mold sections and extend entirely across the sections, and supported by the bar or rod are clamping members 32, which extend into the re spective mold cavities and are adapted to engage the inner faces of the mold sections. These clamping members may be adjusted longitudinally on the bar or rod 31 so as to engage the faces of the mold sections for separating the same and may be held in their adjusted position by means of suitable clamping bolts or screws 33 passing therethrough and engaging the bar or rod 31. Any number ol. these clamps may be provided according 'to the length of the .mold sections. Suitable keysS't, provided with (0th tinuous bearing Faces substantially throughout their length and a head 35 to form shoulders 36, are adapted to be inserted in the space between the inner mold sections 17 and 18, so that the shoulders 36 will rest upon the top edges of the mold section and the body portion 34 thereof will extend into the space, this portion being of a length substantially equal to the height of the inner mold sections and the length of this portion 34; in cross section is greater than the width thereof so that when the mold sections are placed in position and the clamping memers 32 are adjusted, the keys may beaxially rotated so that the greatest diameter in cross section of the body portion thereofwill l l l /l I extend transversely across the space between the mold sections 17 and 18, which tends to separate the inside mold sections'to force them against the adjacent members 32, while the outer mold sections 15 and 16' will be held against the spacing members 30 through the medium of the clamping bar 31 and the respective members 32, thereby locking all of the parts against displacement. When the keys are placed in position and thus axially adjusted th'e keys will have continuous earings against the mold members substantially throughout the entire length of the keys, thereby rendering it possible to use mold members of thin construction and at the same time uniformly adjust the mold members to prevent them from bulging.

A suitablecap or closure 37 is provided with a reduced depending rib 38 of a width slightly less than the width of the space between the sections 17 and 18 when said sections are adjusted by' the key 34. This cap 37 is adapted to be placed upon the upper edges of these mold sections so that the rib 38 will extend into the space thercbetween to form a closure for the space to preventthe plastic material from entering therein when the mold cavities are being filled to form one of the wall sections. After the wall. section has been formed and the material allowed to set, the caps 37 may be first removed and the keys 3-1 rotated axially to permit the shortest crossseetiomil diameter thereof to extend transversely of the space between the. mold sections, which will loosen the inner mold sections and permit' them to be removed; the spacing members 30 being removed to loosen the outer mold sections so as to form the nextwall section.

The uprights or standards 24, 25. areprovided with a plurality of transverse apertures 3f), 40, which are arranged to register with each other and these aperluresare spaced from each other a distance slightly less than the height of the mold sections. After one section of wall has been formed in the manner already s'pecilied, the mold sections may be removed in the lil:llll l tl'..\ib forth and the lower tie bolt or rod 96 is removed from the lower extremity of the standards, and a transverse notch or groove 41 is made in the upper edge of lhe linished wall section42. then inserted into the registering apertures The tie rod or bolt :26 is 39, 40, adjacent the upper edge of-the wall section and the mold sections or members may be replaced between the uprights or standards 25 so that they will rest upon the tie rod or bolt 26 and after being locked-in p'ositionin the manner already .set' forth another section of wall may be formed upon the completed section.

After the Wall has been completed to subtantially the height of the standards 24, 25, the tie rods or bolts which extend throu h the wall section may be removed and t e uprights or standards adjusted bodily so as to bring the a ertures inthe lower ext-remities thereof a jacent the notch 41 in the upper edge of the top wall section, the supportmg brace 28 being detached or adjusted'to permit such adjustment of the supporting frame. After the uprights orstandards have been thus'ad-justed, the t e rod or bolt 26- may be inserted through thelower apertures in the standards so that the framework will be supported by the top oft-he wall and the various sections of the wall maybe formed in a similar manner until the wall has been built tothe desired height. It will thus beseen that the'mold sections are not only adjustable with relation to the supporting standards but the standards themselves are also adjustable with relation to the. wall so that a continuous wall may formed b standards an the mold sections when re 'quire'd.

Theapertures 39 and 40 in uprights or standards being spaced 'from e'aclfiother a distance slightly less than the height of the mold sections, permits the mold sections to be supported in such a position when adjusted that the lower edges willslightly overlap the section of the wall which has already-been formed, thereby insuring a perfect joint for the various sections of the The inner mold sections 17 and 18 may be ro'vided with suitable notches 43 in the ower edges thereof into which the tie rods 44 may enter when the latter are placed upon j the upper edge of the wall section, as shown more clcaijly in Fig. 9 of the drawings. If desired, a tlamp comprising a body portion 45 havinga laterally projecting extremity- 46 may be provided for clamping the out- 'tions wi side mold sections, as shown in Fig. '1. The clamp 45 is adapted to rest updn the upper edge of the sections with tl e laterally projecting extremity 46 engagiii-;the outer face of one of the members, an an adjustable,

member 47 is slidingly mounted on the ole 45 and coiiperates' withthe portion-46 and 1s a'pted to engage the outer face of the other 1d sections, so that -,when the member 47 is iusted toward the laterally "projectinlg port ihns lid, the outer mold sec;

1 be drawn tdgether, and

adjusting the supporting a suitable key 48 be provided for locking t-he -member 47 in its adjusted "position. 'This which are adapted to rest against the outer face of the outer mold sections 15 and 16, and are of a length greater 'thanthe height of. the mold sections. Suitabletie rods or bolts 50 are adapted to pass through the extremities of. these members 49 above and be 'low the mold sections and are provided with I threaded extremities 51, whichsupport suitable thumb nuts 52, the latter being-adaptmembers. 49 against the outer face of. the mold sections.

.Obviouslythe uprights or standards 24590 25 may beof any desired length and may be providedwithany suitable number of apered to be adjusted on the tie rods to :force the -1 tures 39, 40, according, to the number ot wall sections it is desired toform before adjusting the uprights or standards with respect to the wall.

' The apertures which are formed in the wall by the tie rods or bolts 26 may be closed inany-desiredmanner, such as by forcing some of the lastic material into'the aper- "tures after t e tie rods or bolts have been removed, andthe notches 41 formed inthe- .top edge of the wall section for the mam-.-

modation of the tie rods will'be. filled by the plastic material as the next wall sectionis formed. i

ies

Bydproviding the spacing member $130 be- I the outer faces of the mold members 15, 16, the mold members may be adjusted laterally tween the uprights or standards 24,- 25 and with respect to the wall section so as .to per mit the matrix 19 to be moved outof engage ment with the roughened faces of the sections.

Blocks 24 and 25 may be securedrespectively to the inner face of'the lower'f. extremity of the standards 24, 25, which are 7 adapted to rest against theouter faces of the] w wall section to'hold the. standards'in, a

proper position with relationto the wall. 1

In order that the inventionmight be fully understood by those skilled in the art, the

details of the foregoing embodiment thereof I have been thus specifically described, but- What I claim as new and desire to secure '125I forming a COIltlIIllQllS 1 a v by Letters Patent is 1. In a machine for hollow wall, the combination of an inside and an outside colla )sible mold, a framelfor. supporting the mol to form a' wall section and with relation to which themolds aretlo.

adjustable to form another wall section, spacing members disposed between the outer mold and the frame, a matrix supported by one of the mold members, means for holding the outer mold and the spacing members in posit ion,'means adapted to engage the adjacent races of the inner mold members throughout their entire length for expanding the inner mold, and means co operating with the said expanding means to prevent displacen'lent of the inner mold, said spacing members being adapted to be removed to permit the outer mold to be collapsed, said expanding means being adapted to be adjusted to permit the inner mold to be collapsed and said lnolds being both adapted to be laterally adjusted to move the matrix out of engagement with the wall section.

In a machine for forming a continuous hollow wall, the combination of an inner .and an outer collapsible mold, a frame for supporting the molds to form a wall section and with relation to which the molds are adjustable to form another wall section, spacing members disposed between the outer mold-and the frame, a detached key adapted to be inserted between the members of the inner mold, said key having a length of greater diameter in cross section than the diameter of its width and adapted to be axially rotated to extend its greatest cross section diameter transversely of the space between the inner mold members to separate the same, said key also having continuous edges substantially throughout its entire length longitudinally and adapted to have continuous bearings against the faces of the innerinold members and means operatively related to the members of both molds and adapted to hold the outer mold members and also the said spacing members in position.

I In a machine for forming a continuous hollow wall, the combination of an inner and outer collapsible mold, a frame for supporting the mo'l'ds'to form. a wall section and with relation to which the molds are adjustable to form another wall section. clamping members engaging the cooperating adjacent faces of each of the molds. a detached key adapted to be inserted between the members of the inner mold, said ke v having a width of a greater diameter in one direction than in the other and adapted to be axially rotated to cause the greatest diameter thereot to extend transversel v with relation to the inner mold members to separate the same. said key also having continuous edges adapted to engage the inner members for their entire length and means for holding the outer moldpncmhers in position. and said inner mold members being adapted to be laterally adjusted when the key is adjusted to cause its greatform another wall sect on upon the pre- \i()H l formed section, said matrix being shaped to form a group of superposed sec tion t'aces breaking joint with each other and so arranged that when the mold section supporting the matrix is adjusted to form 3 another wall section upon the previously formed section and in the same plane there of the adjacent section faces of the wall sections will break joint with each other.

5. In a machine for the combination of a including spaced uprights, a mold movble between the uprights, means for securing the mold against movement with respect to the uprights to form one wall section, said uprights, being 9o provided of a length greater than thei'height of the mold and throughout their length with alined apertures, said moldf being adapted to be adjusted with respect to the uprights to form another wall section upon as the previously formed wall section, and a member adapted to be adjusted with respect to the uprights and also adapted to pass through the alined apertures en gaging the wall below the mold and upon which the mold is adapted to be supported in position. 7

ti. In a machine for the purpose described, the combination of a frame including spaced uprights, with alined apertures, a member passing through the alined apertures adjacent the base of the uprights for supporting the uprights, a mold movable between the uprights and supported by the said member, means for securing the mold against displacement to form one wall section. said mold being adapted to be adjusted with relation to the uprights to torm another wall section upon the first said section, and through the alined apertures adjacent the, top of the previously formed wall section and below the mold to support the latter in its adjusted position, said members being adapted to be removed and forming apertures through the wall whereby the uprights may be adjusted with respect to the wall and one of the members inserted through predetermined alined apertures in the uprights and an aperture in the wall to support the uprights in their tion.

T. In a machine for the purpose described, the combination of a frame including spaced adjusted posiuprighls, provided throughout their lengths 139 the 70 the purpose described, 35

provided throughout their lengths 1% a member passing 115 uprights to form another Wall sectionupon the first said section, a member passing through the alined apertures adjacent the top of the previously formed wall section and below the mold to support the latter in its adjusted position, said members being adapted to beremoved and forming apertures through the Wall whereby the uprights may be adjusted with respect to the Wall and one of the members inserted through predetermined alined apertures in the uprightsand an aperture in the Wall to support the uprights in their adjusted positions, and means for spacing the uprights from the faces of the first said Wall section.

8. In a machine for the purpose described,

the combination of a frame including spaced uprights, provided throughout their lengths with alined apertures, a member passing through the alined apertures adjacent the base of the uprights for supporting the uprights, adjustable means for connecting the upper ends of the uprights, a mold movable between the uprights and supported by the said member, means for securing the a ainst displacement to form one Wall sectibn, said mold being adapted to be adjusted tures adjacent the top of the formed wall section and below the mold to mold with relation to the upright to form another Wall section upon the first said section, and a member passing through the alined aperpreviously support the latter in its adjusted position, said members being adapted to be removed and forming apertures through the wall,

whereby the uprights may be adjusted with respect to the Wall and one of the members inserted through predetermined alined apertures in the uprights and an aperture in the wall to support the uprights in their adjusted position.

9. A mold for molding hollow articles of plastic materials consisting of separable opv posing mold members or plates and an elongated expanding member or key disposed between said mold members said expanding member or key having a length of greater diameter in cross-section than the diameter of its width and being provided with continuous bearing faces, said key or member being adapted to be axially rotated to separate the mold members and to have a continuous bearing against each of the mold members throughout their entire length.

In testimony whereof I have signed my name to this specification, in. the presence of two subscribing witnesses, on this 7th day of December A. l). 1907.

ALEXANDER J. STOESER.

Witnesses:

J. H. JooHUM, Jr., M. N. CANTWELL. 

